/Engine/Source/Editor/UnrealEd/Public/EditorCategoryUtils.h
Expands any keys found in the category string (any terms found in square brackets), and sanitizes the name (spacing individual words, etc.).
A concatenated text string, with the two categories separated by a pipe, '|', character.
namespace FEditorCategoryUtils { [FText](API\Runtime\Core\Internationalization\FText) FEditorCategoryUtils::GetCategoryDisplayString ( const [FText](API\Runtime\Core\Internationalization\FText) & UnsanitizedCategory ) }